Hi Troy,
a colleague recently came up with a Tweak I've put up here:
http://www-zeuthen.desy.de/~wiesand/SL3/DL_thunderbird-0-1.src.rpm
Turning it into an SL_... rpm should be quite simple.
Cheers,
Stephan
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Stephan Wiesand
DESY - DV - Phone: +49 33762 7 7370
Platanenallee 6 Fax: +49 33762 7 7216
15738 Zeuthen, Germany